package com.itheima.controller;

import com.itheima.pojo.Result;
import com.itheima.utils.AliOssUtil;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.UUID;

@RestController
public class FileUploadController {

    /**
     * 上传文件到本地
     * @param file
     * @return
     * @throws IOException
     */
    @PostMapping("/upload/local")
    public Result<String> upload(MultipartFile file) throws IOException {
        // 把文件的内容存到本地磁盘上
        String originalFilename = file.getOriginalFilename();
        // 保证文件的名字是唯一的，从而防止文件覆盖
        String filename = UUID.randomUUID().toString() + originalFilename.substring(originalFilename.lastIndexOf("."));
        file.transferTo(new File("D:\\Study\\Java\\files\\" + filename));
        return Result.success("url访问地址...");
    }

    /**
     * 上传文件到云端
     * @param file
     * @return
     * @throws IOException
     */
    @PostMapping("/upload")
    public Result<String> upload2(MultipartFile file) throws Exception {
        // 把文件的内容存到本地磁盘上
        String originalFilename = file.getOriginalFilename();
        // 保证文件的名字是唯一的，从而防止文件覆盖
        String filename = UUID.randomUUID().toString() + originalFilename.substring(originalFilename.lastIndexOf("."));
        String url = AliOssUtil.uploadFile(filename, file.getInputStream());
        return Result.success(url);
    }

}
